Hi!
I'm completed the OpenCV iOS video processing tutorial, but I get this exception when running the completed app:
libc++abi.dylib: terminating with uncaught exception of type cv::Exception: /Users/vp/work/opencv/modules/imgproc/src/color.cpp:3380: error: (-215) (scn == 3 || scn == 4) && depth == CV_8U in function cvtColor
The exception is thrown by this function:
- (void)processImage:(Mat&)image;
{
// Do some OpenCV stuff with the image
Mat image_copy;
cvtColor(image, image_copy, COLOR_BGR2GRAY);
//invert image
bitwise_not(image_copy, image_copy);
cvtColor(image_copy, image, COLOR_BGR2BGRA);
}
on the line cvtColor(image_copy, image, COLOR_BGR2BGRA);
What exactly is going on?